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Subject: Re: [R] speed of makeCluster (package parallel)
Message-ID: 526ea5ee.9060...@stats.ox.ac.uk
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On 28/10/2013 16:19, Arnaud Mosnier wrote:
Hi all,
I am quite new in the world of parallelization and I wonder
Hi all,
I am quite new in the world of parallelization and I wonder if there is a
way to increase the speed of creation of a parallel socket cluster. The
time spend to include threads increase exponentially with the number of
thread considered and I use of computer with two 8 cores CPU and thus
See library(help = parallel”)
On 28 Oct 2013, at 17:19, Arnaud Mosnier a.mosn...@gmail.com wrote:
Hi all,
I am quite new in the world of parallelization and I wonder if there is a
way to increase the speed of creation of a parallel socket cluster. The
time spend to include threads
Thanks Simon,
I already read the parallel vignette but I did not found what I wanted.
May be you can be more specific on a part of the document that can provide
me hints !
Arnaud
2013/10/28 Simon Zehnder szehn...@uni-bonn.de
See library(help = parallel”)
On 28 Oct 2013, at 17:19, Arnaud
First,
use only the number of cores as a number of thread - i.e. I would not use hyper
threading, etc.. Each core has its own caches and it is always fortunate if a
process has enough memory; hyper threads use all the same cache on the core
they are running on. detectCores() gives me for
On 28/10/2013 16:19, Arnaud Mosnier wrote:
Hi all,
I am quite new in the world of parallelization and I wonder if there is a
way to increase the speed of creation of a parallel socket cluster. The
time spend to include threads increase exponentially with the number of
It increases linearly in
Thanks a lot Simon, that's useful.
I will take a look at this process-pinning things.
Arnaud
2013/10/28 Simon Zehnder szehn...@uni-bonn.de
First,
use only the number of cores as a number of thread - i.e. I would not use
hyper threading, etc.. Each core has its own caches and it is always
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